@misc{indiciae32d9969fd8ab,
  title = {Summary of surface-water-quality data, Interior Coal Province, eastern region, October 1978 to September 1982},
  author = {S. A. Hoffman and K. L. Wetzel},
  year = {1983},
  doi = {10.3133/ofr83941},
  url = {https://pubs.usgs.gov/publication/ofr83941},
  note = {Source identifier: ofr83941}
}